LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Nissan-Datsun >> 2016 >> Altima Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 679 (Engine Control System (Introduction)) >> System Description >> Diagnosis System (ECM) >> Consult Function >> Active Test Mode >> Test Item
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Test Item

WARNING: This page is about a different car, the 2017 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
TEST ITEM CONDITION JUDGEMENT CHECK ITEM (REMEDY)
ENG COOLANT TEMP
  • Engine: Return to the original trouble condition
  • Change the engine coolant temperature using CONSULT.
If trouble symptom disappears, see CHECK ITEM.
  • Harness and connectors
  • Engine coolant temperature sensor
  • Fuel injector
FUEL INJECTION
  • Engine: Return to the original trouble condition
  • Change the amount of fuel injection using CONSULT.
If trouble symptom disappears, see CHECK ITEM.
  • Harness and connectors
  • Fuel injector
  • Air fuel ratio (A/F) sensor 1
PURG VOL CONT/V
  • Engine: After warming up, run engine at 1, 500 RPM.
  • Change the EVAP canister purge volume control solenoid valve opening percent using CONSULT.
Engine speed changes according to the opening percent.
  • Harness and connectors
  • Solenoid valve
FUEL/T TEMP SEN Change the fuel tank temperature using CONSULT.
POWER BALANCE
  • Engine: After warming up, idle the engine.
  • A/C switch OFF
  • Selector lever: P or N
  • Cut off each injector signal one at a time using CONSULT.
Engine runs rough or dies.
  • Harness and connectors
  • Compression
  • Fuel injector
  • Power transistor
  • Spark plug
  • Ignition coil
EXT V/T ASSIGN ANGLE
  • Engine: Return to the original non-standard condition
  • Change exhaust valve timing using CONSULT.
If malfunctioning symptom disappears, see CHECK ITEM.
  • Harness and connectors
  • Exhaust valve timing control solenoid valve
VIAS S/V-1
  • Ignition switch: ON (Engine stopped)
  • Turn solenoid valve "ON" and "OFF" using CONSULT and listen to operating sound.
Solenoid valve makes the operating sound
  • Harness and connectors
  • Solenoid valve
VENT CONTROL/V
  • Ignition switch: ON (Engine stopped)
  • Turn solenoid valve "ON" and "OFF" with the CONSULT and listen to operating sound.
Solenoid valve makes an operating sound.
  • Harness and connectors
  • Solenoid valve
FAN DUTY CONTROL *
  • Ignition switch: ON
  • Change duty ratio using CONSULT.
Cooling fan speed changes.
  • Harness and connectors
  • Cooling fan motor
  • Cooling fan relay
  • Cooling fan control module
  • IPDM E/R
VIAS S/V-2
  • Ignition switch: ON (Engine stopped)
  • Turn solenoid valve "ON" and "OFF" using CONSULT and listen to operating sound.
Solenoid valve makes the operating sound
  • Harness and connectors
  • Solenoid valve
FPCM
  • Engine: Return to the original trouble condition
  • Select "LOW", "MID" and "HI" with CONSULT.
Fuel pump speed changes or stops.
  • Harness and connectors
  • Fuel pump control module (FPCM)
IGNITION TIMING
  • Engine: Return to the original trouble condition
  • Timing light: Set
  • Retard the ignition timing using CONSULT.
If trouble symptom disappears, see CHECK ITEM. Perform Idle Air Volume Learning.
ENGINE OIL PRESSURE CONTROL SOLENOID VALVE
  • Water temperature: > - 10°C
  • Engine oil temperature: < 120°C (248°F)
  • Engine speed: < 4000 RPM
Engine oil pressure change
  • Harness and connectors
  • Engine oil pressure control solenoid valve
  • Engine oil pressure sensor
  • Engine oil pump

* : Leaving cooling fan OFF with CONSULT while engine is running may cause the engine to overheat.